Before diving into the specifics of "U7" and "Auto Patch," let’s clarify the device:

This indicates the bootloader version. You cannot downgrade to a lower binary (e.g., U6 or U5) once you have updated to U7.

Inside the AP file, find the boot.img.lz4 (or init_boot.img.lz4 ).

, allowing you to expand the 12GB of physical RAM by an additional 4GB using internal storage Device Care